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AI cost per user calculator

AI cost per active user a month, gross margin at your price, and the break-even price for an AI feature.

Model, priced from the vendor page on the verified date
ai cost per user0.00

Prices read from the vendor pages on 2026-10-20. Arithmetic on list prices, not advice or a quote.

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How it works

Software gross margins run 70 to 90 percent; an AI feature whose model cost is a third of the subscription price has already eaten the margin. The break-even price here holds model cost to 30 percent of revenue. Caps on actions, cheaper models for routine actions and caching are the usual levers.

The formula

cost_per_user = actions * llm-api-cost per action; margin = (price - cost) / price; break_even = cost / 0.30

Worked example

With the inputs the page opens on:

  • monthly active users: 2000
  • actions per user per month: 40
  • input tokens per action: 2500 tokens
  • output tokens per action: 400 tokens
  • model: claude-sonnet-5-5
  • cached share pct: 40%
  • price per user per month: 12 USD

gives

  • ai cost per user: $0.284
  • monthly ai cost: $568
  • gross margin pct: 97.6 %
  • break even price: $0.950
  • actions covered by price: 1,690

Sources

Prices read from each vendor's own pricing page on 2026-10-20; the page may have changed since. This is arithmetic on published list prices, not advice or a quote. Check the vendor's page before committing a budget.

Questions

Does this include hosting and support?
No. Only model API cost. Everything else about unit economics is your own spreadsheet.

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